I like the gekko also. My LDS rents them(however I never seem to pay for my rentals:confused4 and they are great. I ended up buying a Vyper 2 becuse I wanted to be able to download it and I got a great deal on it. I use it wrist mounted and run a simple SPG just because I prefer it. The Vyper 2 is the first computer I've owned and I love the fact that almost all my info besides my air is on my wrist. Really it comes down to money and personal preferance.
Have fun and dive safe.
Have fun and dive safe.